Carbon steel is a reference used mostly for non-stainless steels. The amount of carbon in carbon steels is generally 2.1% of the total weight. Elements like cobalt, nickel, chromium, molybdenum, tungsten, niobium, vanadium and zirconium. Heat treatment causes the carbon steels to harden. Strength is increased with heat treatment in carbon steels. While, the properties are enhanced, the ductility of carbon steels is reduced. The higher content of carbon also makes it less weldable.
Low-carbon steels is a type of carbon steel. Low-carbon steel flanges have approximately 0.5-0.25% carbon content in them. The low cost of carbon steel makes it an ideal choice for many applications, making it one of the most commonly used steels. Carburising increases the surface hardness of carbon steel flanges. Carbon steel flanges come in four types like Slip-on Flanges, Socket-Weld Flanges, Threaded Flanges, Lap-Joint Flanges and Blind Flanges. Tensile strength in carbon steels are low in comparison to that of other steel types. Low-carbon steel flanges can undergo cold-forming effectively, owing to the low carbon content present in these.